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188 lines
6.5 KiB
188 lines
6.5 KiB
define([
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'jquery',
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'base/js/namespace',
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'base/js/dialog',
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'base/js/events',
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'base/js/utils',
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'require',
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], function(
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$,
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Jupyter,
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dialog,
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events,
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utils,
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require
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) {
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"use strict";
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//==========================================================================
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var appmode_unload_handler = function (e) {
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var nb = Jupyter.notebook;
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var url_parts = [nb.base_url, 'apps', nb.notebook_path];
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var url = utils.url_path_join.apply(null, url_parts);
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// tell server to clean up session, kernel, and tmp notebook file.
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utils.ajax(url, {cache: false, type: "DELETE", async: false});
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};
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//==========================================================================
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var kernel_busy_handler = function (e) {
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$('#appmode-busy').css('visibility', 'visible');
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}
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//==========================================================================
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var kernel_idle_handler = function (e) {
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$('#appmode-busy').css('visibility', 'hidden');
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}
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//==========================================================================
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function goto_app_mode() {
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// kill Jupyter session
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Jupyter.notebook.session.delete();
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// build new URL
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var base_url = Jupyter.notebook.base_url;
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var prefix = base_url+"notebooks/"
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var path = window.location.pathname.substring(prefix.length);
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var search = window.location.search;
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var scroll = "appmode_scroll=" + $('#site').scrollTop();
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if (search.search(/appmode_scroll=\d+/) != -1){
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search = search.replace(/appmode_scroll=\d+/g, scroll);
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}else if (search.length == 0) {
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search = "?" + scroll;
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} else {
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search += "&" + scroll;
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}
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// goto new URL
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window.location.href = base_url + "apps/" + path + search;
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}
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//==========================================================================
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function goto_normal_mode() {
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// build new URL
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var base_url = Jupyter.notebook.base_url;
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var prefix = base_url+"apps/"
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var path = window.location.pathname.substring(prefix.length);
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var new_url = base_url + "notebooks/" + path + window.location.search;
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// goto new URL
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// Not using location.pathname as it might urlencode the path again
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window.location.href = new_url;
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}
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//==========================================================================
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function kernel_inject_url(kernel) {
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kernel.execute("jupyter_notebook_url = '" + window.location + "'");
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}
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//==========================================================================
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function initialize_step1() {
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if (Jupyter.notebook && Jupyter.notebook._fully_loaded) {
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initialize_step2();
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}else{
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events.one('notebook_loaded.Notebook', initialize_step2);
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}
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}
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//==========================================================================
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function initialize_step2() {
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// scroll to last position if in normal mode
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var base_url = Jupyter.notebook.base_url;
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if(window.location.pathname.startsWith(base_url+"notebooks/")){
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var url = window.location.href;
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var m = url.match(/appmode_scroll=(\d+)/);
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if(m)
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$('#site').scrollTop(m[1]);
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}
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var nb = Jupyter.notebook;
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if(nb.kernel && nb.kernel.info_reply.status) {
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initialize_step3();
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}else{
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events.one('kernel_ready.Kernel', initialize_step3);
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}
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}
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//==========================================================================
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function initialize_step3() {
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kernel_inject_url(Jupyter.notebook.kernel);
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// run kernel_inject_url() again when a new kernel is created
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events.on('kernel_created.Kernel kernel_created.Session', function(event, data) {
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kernel_inject_url(data.kernel);
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});
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var base_url = Jupyter.notebook.base_url;
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if(window.location.pathname.startsWith(base_url+"apps/")){
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// appmode is active -> continue intializtion
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initialize_step4();
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}
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}
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//==========================================================================
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function initialize_step4() {
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// install unload-handler
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window.onbeforeunload = appmode_unload_handler;
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// disable autosave
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Jupyter.notebook.set_autosave_interval(0);
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// disable keyboard shortcuts
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Jupyter.keyboard_manager.command_shortcuts.clear_shortcuts();
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Jupyter.keyboard_manager.edit_shortcuts.clear_shortcuts();
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// disable editing of text cells
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$('.text_cell').off("dblclick");
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// disable editing of raw cells
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$('.CodeMirror').each(function() {
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this.CodeMirror.setOption('readOnly', "nocursor");
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});
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// register kernel events
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events.on('kernel_idle.Kernel', kernel_idle_handler);
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events.on('kernel_busy.Kernel', kernel_busy_handler);
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// register on_click handler
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$('#appmode-leave').click(goto_normal_mode);
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// clear all cell outputs persisted in the initial notebook
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Jupyter.notebook.clear_all_output();
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// try to load the jupyter-js-widgets extension to see if it's installed
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utils.load_extension('jupyter-js-widgets/extension').then(function(module) {
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// force the extension to initialize if it exists, even if it's a repeat
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// operation, to avoid a race condition with executing cells that contain
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// widgets
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module.load_ipython_extension().then(initialize_step5);
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}).catch(initialize_step5);
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}
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//==========================================================================
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function initialize_step5() {
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// hide loading screen
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$('#appmode-loader').slideUp();
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// execute all cells
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Jupyter.notebook.execute_all_cells();
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console.log("Appmode: initialization finished");
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};
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//==========================================================================
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var load_ipython_extension = function() {
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// add button to toolbar in case appmode is not enabled
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Jupyter.toolbar.add_buttons_group([{
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id : 'toggle_codecells',
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label : 'Appmode',
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icon : 'fa-arrows-alt',
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callback : goto_app_mode
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}]);
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initialize_step1();
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};
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//==========================================================================
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return {
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load_ipython_extension : load_ipython_extension
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};
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});
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